<template>
  <div class="header">
    <van-icon name="arrow-left" class="icon" @click="goback"/>
    <div>{{ title }}</div>
    <div class="edit" v-if="edit" @click="handleEdit">{{store.state.edit ? "编辑":"完成"}}</div>
  </div>
</template>

<script>
import { showFailToast } from 'vant';
import { useRouter } from 'vue-router';
import { useStore } from 'vuex';

export default {
  props: ["title","edit"],
  setup() { 
    const router = useRouter()
    const store =useStore()
    const goback = () => {
      router.back()
    }
    const handleEdit = () => {
      if (store.state.cartList.length) {
        store.commit('edit')
        store.commit('changeDelete')
      } else { 
        showFailToast({
          message: '请加入商品到购物车',
          position:'top'
        })
      }
    }
    return {
      goback,
      handleEdit,
      store
    }
  }
}
</script>

<style lang="less" scoped>
.header{
  background-color: #fff;
  height: 40px;
  font-size: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  border-bottom: 1px solid #d7d7d7;
  .edit{
    font-size: 16px;
    position: absolute;
    right: 15px;
    font-weight: normal;

  }
  .icon{
    position: absolute;
    left: 10px;
  }
}
</style>
